The newborn is named after the 19th century British preacher Charles Spurgeon, whose sermons and writings had a large impact on the couple, Ben explained in a video. The baby's middle name, meanwhile, honors the late Jim and Elisabeth Elliot, missionaries who worked in South America.

According to Jessa, Spurgeon will be called by his nickname -- Quincy. "His nickname has been Quincy since we first found out we were pregnant," Jessa reveals in the clip.

Like her sister, Jessa documented her pregnancy and growing baby bump on Instagram. Two days before her due date, she posted a selfie and wrote, "39 weeks 4 days! Feeling as big as a barn, and soooo ready to meet my baby! #BabySeewald."

Jill's pregnancy and birth of baby son Israel earlier this year was also documented on "19 Kids and Counting." Jessa announced her pregnancy in April, a month before the scandal erupted and three months before the show's cancellation. Jessa had said her due date was Nov. 1, her and Seewald's first wedding anniversary.

Jill, husband Derick Dillard, 26, and their child have been on a Christian mission for the past few months and have been living part time in Central America. Their journey and Jessa's marriage and pregnancy, as well as the sisters' perspectives on the aftermath of their family turmoil, will be shown on the new TLC spinoff, "Jill & Jessa: Counting On," which is set to debut in December.